Genealogy / THE MEANING AND RESEARCH OF MY POLISH LAST NAME, SURNAME? [4500]

Hi I was wondering if anyone could help me with these surnames.

Goj
Dziedzic
Kziel
Walowa

Genealogy / THE MEANING AND RESEARCH OF MY POLISH LAST NAME, SURNAME? [4500]

Thank you, and ah yes I had a feel that one was misspell but wasn't too sure.